Hi all,
after a bit of a break from PySide I am trying to wrap my head around
the model/view stuff again and am trying to understand how a very simple
example would work where a QStandarItem has properties "title",
"priority" and "finished" which are displayed via a QStandardTableView.
I am struggling with understanding how to properly display the above
three properties in the table's columns. I tried setting the data()
method on the model like this:
/ def data(self, index, role=QtCore.Qt.DisplayRole)://
// '''Return data based on index and role'''//
// item = self.itemFromIndex(index)//
// if index.column() == 0://
// return item.title//
// elif index.column() == 1://
// return item.finished//
// elif index.column() == 2://
// return item.priority/
but for some reason it errors saying item does not have attribute
"finished" even though my item object s declared like this:
/class TaskItem(QtGui.QStandardItem)://
// '''Item to hold a task for the todo list'''//
////
// def __init__(self, title, finished=False, priority=1)://
// super(TaskItem, self).__init__(title)//
// self.title = title//
// self.finished = finished//
// self.priority = priority/
When printing the item's attributes via dir() I see that, when the model
is populated, the last item it attempts to call is not my custom item
object, but something else with less attributes and methods. Clearly
there is something I haven't quite understood about this process.
Also, if I use the models data() method as pointed out above, I get
checkboxes in the cells which I don't want at this stage.
Can somebody please help me understand where I go wrong?
Attached is the whole test code.
Cheers,
frank
P.S.: I am aware that the controller code shouldn't necessarily live in
the QWidget's methods, this is just for testing which I will clean up
once I get how it all connects again
from PySide import QtGui
from PySide import QtCore
class TaskItem(QtGui.QStandardItem):
'''Item to hold a task for the todo list'''
def __init__(self, title, finished=False, priority=1):
super(TaskItem, self).__init__(title)
self.title = title
self.finished = finished
self.priority = priority
class ToDoModel(QtGui.QStandardItemModel):
'''Model for tasks to manage the todo list'''
def __init__(self, parent=None):
super(ToDoModel, self).__init__(parent)
self.setColumnCount(3)
def addTask(self, taskItem):
taskCount = self.rowCount()
self.setItem(taskCount, 0, taskItem)
def data(self, index, role=QtCore.Qt.DisplayRole):
'''Return data based on index and role'''
item = self.itemFromIndex(index)
print 'items attributes are:', dir(item)
if index.column() == 0:
return item.title
elif index.column() == 1:
return item.finished
elif index.column() == 2:
return item.priority
class ToDoProxyModel(QtGui.QSortFilterProxyModel):
'''Proxy Model for filtering and sorting - not yet in use'''
def __init__(self, parent=None):
super(ToDoProxyModel, self).__init__(parent)
class ToDoPanel(QtGui.QWidget):
'''Panel to create and manage a to-do list'''
def __init__(self, parent=None):
super(ToDoPanel, self).__init__(parent)
self.model = ToDoModel()
self.buildUI()
self.connectSignalsWithSlots()
# ADD THE FIRST TASK
#self.addTask()
def buildUI(self):
## LAYOUT
layout = QtGui.QVBoxLayout()
self.setLayout(layout)
## TOOL BAR
toolLayout = QtGui.QHBoxLayout()
self.addButton = QtGui.QPushButton('add task')
toolLayout.addWidget(self.addButton)
## TABLE VIEW
tableView = QtGui.QTableView()
tableView.setModel(self.model)
tableView.setSortingEnabled(True)
tableView.horizontalHeader().setStretchLastSection(True)
## CREATE UI
layout.addLayout(toolLayout)
layout.addWidget(tableView)
def addTask(self):
newTaskItem = TaskItem('new task')
print newTaskItem.finished
print newTaskItem.priority
taskCount = self.model.rowCount()
print 'setting new item at', str(taskCount)
self.model.appendRow(newTaskItem)
def connectSignalsWithSlots(self):
self.addButton.clicked.connect(self.addTask)
if __name__ == '__main__':
import sys
app = QtGui.QApplication([])
w = ToDoPanel()
w.show()
sys.exit(app.exec_())_______________________________________________
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